/* ******************************************************************************
 * Copyright (c) 2006-2012 XMind Ltd. and others.
 * 
 * This file is a part of XMind 3. XMind releases 3 and
 * above are dual-licensed under the Eclipse Public License (EPL),
 * which is available at http://www.eclipse.org/legal/epl-v10.html
 * and the GNU Lesser General Public License (LGPL), 
 * which is available at http://www.gnu.org/licenses/lgpl.html
 * See http://www.xmind.net/license.html for details.
 * 
 * Contributors:
 *     XMind Ltd. - initial API and implementation
 *******************************************************************************/
package org.xmind.gef.ui.editor;

import java.util.List;

public interface IPanel {

    public static final int TOP = 1;

    public static final int BOTTOM = 2;

    public static final int LEFT = 3;

    public static final int RIGHT = 4;

    void update();

    void addContribution(int orientation, IPanelContribution contribution);

    void removeContribution(IPanelContribution contribution);

    List<IPanelContribution> getContributions(int orientation);

}